Scientists develop robot fish that eat microplastics


BEIJING: Robot fish that “eat” microplastics may one day help to clean up the world’s polluted oceans, says a team of Chinese scientists from Sichuan University.

Soft to touch and just 1.3cm in size, these robots already suck up microplastics in shallow water.

The team aims to enable them to collect microplastics in deeper water and provide information to analyse marine pollution in real time, said Wang Yuyan, one of the researchers who developed the robot.

“We developed such a lightweight miniaturised robot. It can be used in many ways, for example in biomedical or hazardous operations, such a small robot that can be localised to a part of your body to help you eliminate some disease,” said Wang.

The black robot fish is irradiated by a light, helping it to flap its fins and wiggle its body. Scientists can control it using the light to avoid it crashing into other fish or ships.

“If it is accidentally eaten by other fish, it can be digested without harm as it is made from polyurethane, which is also biocompatible,” Wang said.

The fish is able to absorb pollutants and recover itself even when it is damaged. — Reuters

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